This task would be a sort of work order assigned to someone - they would need to see some information on the task (access details, on-site contact, property address, property name etc) and be able to report back with their comments and photos.

The contractor would fill out a form or task record detail when on-site.

1) Can I prefill form values by passing them as query string parameters to the form page? ie propertyid=123456

2) Can I do a custom JSON API call with a variable passed in ?propertyid=123456 before the form loads?

i.e. the custom api call would be

http://www.site.com/json/getPropertyName

{ "propertyid": "123456", "authkey": "123456" }

then the form would pull the property name from an API and display it on the form page before loading the form

The benefit is you could have an updateable form that pulls existing data and prefills it

3) Our contractors would take 40-60 photos of a job, is there an upload type optimise photo that would resize the size (resize to 1000x1000 max sides) and quality of each photo (90% compression) on the client-side (javascript) before uploading them on the form to reduce data and storage usage?